Winding machine



Feb. 26, 1935. J. o. MCKEAN WINDING MACHINE Filed Feb. 13, 1933 4Sheets-Sheet l MN MW lNVENTOR ATTORNEYS WINDING MACHINE Filed Feb. 13,1933 4 Sheets-Sheet 2 ATTORNEYS J. O. M KEAN WINDING MACHINE Feb. 26,1935.

Filed Feb. 13, 1953 4 Sheets-Sheet 3 INVENTOR- ATTORNEYS J. O. MOKEANWINDING MACHINE Feb. 26, 1935.

4 Sheets-Shet 4 Filed Feb. 15, 1933 INVENTOR- Patented Feb. 26, 1935WINDING MACHINE John 0. McKean,

Foster Machine Company,

Westfield, Mass., assignor to Westfield, Mass, a

corporation of Massachusetts Application February 13, 1933, Serial No.656,455

6 Claims. (01. 242-43) One object of my invention is to provide certainimprovementsin the construction, form and arrangement of a liftingthread bar for winding machines, in which the winding of the package is.5 begun previous to the leading of the thread into the threadtraversing means.

Another object of my invention is the provision of a lifting thread barpivotally mounted upon the stop motion cover in such a manner as toeffect the previous named object. Another object of my invention is toprovide a means whereby whipping and cutting of the thread by the threadtraversing means previous to the attainment of full speed by therotating package is obviated by holding the thread out of the threadguide until the full speed of the package is attained. l

Other objects and advantages will be apparent as invention is furtherdescribed. 20 A practical embodiment of my invention is represented inthe accompanying drawings, in which a Fig. lrepresents a verticaltransverse section through'so much of a winding machine as will give aclear understanding of my improved lifting thread bar, the parts beinginthe positions they assume when the yarn has broken or become ex-'hausted and the package has been lifted away from its winding roll.

Fig. 2 represents a vertical transverse section 30 through the sameportion of the winding machine, the parts being in the positions theyassume when the hand lever has been fully depressed for temporarilydepressing and holding the detector wire, for lifting the packagecontrolling rack bar out of engagement with its lever arm and fortemporarily raising the lifting thread bar to hold the thread out of thethread guide.

Fig; 3'represents a view similar to Figs. 1 and 2 with the parts in thepositions they assume under normal running conditions. r l i Fig. 4represents the stop motion cover and lifting thread bar in frontelevation, and

Fig. 5 represents an end view of the same.

It should be understood that by the term thread as used in thisapplication, I mean to include yarn, cord or other media which can besuccessfully handled by the machine. 7

The winding roll 1 revolves the package 2 by frictional surface contacttherewith, the package in the present instance being shown as a cop. Thepackage is carried by a forwardly projecting arm 3 of a rock levermounted on a shaft 4, the depending arm 5 of this rock lever havingpivoted thereto at 6 the rear end of a rack bar 7. The ratchet toothedportion 8 of the rack bar normally engages a tooth 9 on the dependingarm 10; of a rocklever loosely mounted on a pivot pin 11, which leverhas an uprising arm 12 to which oneend of a coil spring 13 isattachedfor yieldingly holding the'depending arm 10 at the limit of its-5 rearward movement with its stop 14 in engagement with a frame bar 15.The coil spring 16 connects the depending lever arm 5 with the rack bar'7 so as to ensure the engagement of the toothed portion 8 of the rackbar with the tooth 9 of the depending loose lever arm 10.

The traverse guide 1'7 for the yarn is recipro cated in the usual mannerby a cam surface 18 fast on the cam shaft 19. This cam shaft 19 alsocarries a kicker cam 20,preferably provldedwith a sin-1 gle lobe, whichcam serves as a part of the tripping mechanism for the stop motionmechanism.

The detector wire 21 of the tripping mechanism is normally helddepressed by the yarn as it passes to the package during thewindingthereof. This detector wire is-c'arried by a rock'lever 22 which swingson a pivot pin 23 carried by the latch lever 24 of the trippingmechanism, this latchlever in turn swinging on a pivot pin 25. Atripping roller 26 is carried by the detector lever 22. Metal to metalcontact between the kicker cam and tripping roller is obviated in thiscon} struction by making the roller of some suitable non-metallicmaterial, such for instance ashard fibre. This tripping roller isnormally held outof the path of the kicker cam by the depression of thedetector wire 21 due to its contact with the yarn as it passes to thepackage. .Should the yarn break or become exhausted, the tripping roller26 is automatically swung into the path of and into rolling contact withthe kicker cam 20 the moment the detector wire 21 is permitted to rise ag I The end of the spring 13 opposite to that which is attached to theuprising arm 12 of the rack 40 engaging lever isattached to the latchlever 24 for normally holding the latch lever in its operative positionin engagement with the hand lever.

The three-armed hand lever 27, 28, 29 swings on the pivot pin 11. end tothe uprising arm 28 of the hand lever and at its other end to the frameforswinging-the hand lever to its raised position when it is released bythe latch lever 24 of the tripping mech-, anism The forwardly projectingarm 2'7 of the hand lever is provided with an extension 31 which isdeveloped into a handle 32 for depressing the lever. The rearwardlyprojecting arm 29 of the hand lever is provided with a hook pin 33arranged to raise the ratchet toothed portion 8 of the rack A spring 30is attached at one noted by 39 and the v the rack bar 7 out bar out ofengagement with the tooth 9 of the depending lever arm 10 at or near theend of the depression of the hand lever, after fulcrum projection 364,to be presently described, has raised lifting thread bar 36, also to bepresently described. This relation of the parts is shown in Fig. 2.

The stop motion cover 34 swings ona pivot pin 35 carried by theforwardlyprojecting arm 27 of the hand lever, which pin 35 also coactswith the latch lever 24 to cause the latch leverto hold the hand leverin its nearly depressed position, as shown in Fig. 3, when the packageis beingwound. A lifting thread bar 36 is carried by a lifting threadbar holder 361 I which is pivoted by pivot pins 362 to the stop motioncover 34. This lifting thread bar extends in close proximity to thetraverse guide 17 and is attached to the lifting thread bar holder 361by means of 1ugs363. Lifting thread bar holder 361 is so shaped as torest proximate to fulcrum projection 364 when the stop motion mechanismis in its running position, as. shown in Fig. 3. Lifting thread barholder 361 is provided with a projecting stop 365 which serves to-limitits downward pivotal motion whenthe parts are in a knock-off position asshown inFig. 1, permitting lifting thread bar holder 361 to be liftedaway from the fulcrum projection 364. A screw 37 carried by the cover 34and slidably engaged with the frame is used for adjusting the positionof the cover, a spring 38 serving. yieldingly to hold the cover in itsadjusted position.

The bobbin from which the yarn is fed is dethreaded yarn by 40. Thetension device through which the yarn is passed is denoted by 41.

.The. one-way interlocking connection between thehand lever andlatch barcontrolling lever is shown as comprising an offset lug 42 on thedepending leverarm 10 arranged in position to be engaged by a dependinglug 43 on the hand lever.

Operation cover. 3.4 to. its lowestposition, rocks the parts,

361, .363. and 36 upon the fulcrum projection 3,64, and thuskeepstheyarn high enough above the thread-guide 17 so that when the fulldepression of the hand lever-causes the hook pin 33 to raise ofengagement with the lever arm,10,.thereby permitting the package 2 todrop down onto the winding roll 1, nevertheless: the thread is kept awayfrom the thread guideuntil the return of the handle to running position.The. spring 13 is permitted to swing the lever arm to. the limit of its.rearward movement.

' Assoon as the yarn starts. winding, the hand lever is released and itwill immediately rise slightly to the position shown in Fig. 3 where itspin 35 will be engaged by the latch lever 24 releasably locking the handlever in position. This slightraising of the handle raises also the stopmotion cover 34, rocks the parts 361, 363 and 36 upon the fulcrumprojection 364, lowering the thread bar 36, permitting the yarn to, dropinto the traverse guide 17. a

When the yarn breaks or becomes exhausted, the detector wire 21 will bepermitted to rise to the position shown in Fig. 1, thereby causing thetripping roller 26 to be moved into the path of and into rolling contactwith the kicker cam 20. As the kicker cam revolves, it will throw theroller out of the path of the cam and thereby swing the latch leverforward causing it to be disengaged from the latch pin 35 on the handlever. The spring 30 immediately raises the hand lever to the positionshown in Fig. 1, thereby causing the lever arm 10, because of itsone-way interlocked connection 42, 43 with the hand lever,

to pull the rack bar 7 forward, lifting the package off of the windingroll 1. The spring 16 ensures the locking engagement between the rackbar 7 and the depending lever arm 10 when released from the hook pin 33,thereby maintaining the package in its raised position out of contactwith the winding roll. This lifting movement of the hand lever alsoraises the stop motion'cover 34' causes projecting stop 365 to contact.with it and lifts lifting thread bar holder 361 and its integral partsaway from the fulcrum projection 364. a a

It will thus be seen that I have devised a lifting thread bar forwinding machines wherein-the package begins to wind previous tothe-thread coming into contact with thus avoiding the troublesome andexpensive whipping, cutting, and weakening of the thread when the threadis caught by the thread'guide while it is still stationary, or movingslowly. It will also be seen that other advantages inhere in my presentconstruction which need not here be enumerated. a

The patentable elements shown and described but not claimed herein arecovered byclaims of my copending application filed Dec. 6-, 1930, SerialNo. 500,495, now Patent No. 1,958,060, issued May 8, 1934. I

It is evident that various changes may be resorted to in theconstruction, form and arrangement of the several parts withoutdeparting from the spirit and scope of myinvention, and hence I do notintend to be limited to the particular embodiment herein shown and.described, but

What I claim is: v

1. In a winding machine, a package holder, means for actuating saidpackage holder, traversing means, means for engaging and disengagingsaid package holder from said package holder actuating means, and meansthereon adapted to guide the thread to the package out of the path ofsaid traversing means until after the winding of the package starts.

2. In a winding machine, a package holder, means for actuating saidpackage holder, traversing means, means for engaging and disengagingsaid package holder from said package holder actuating means, a threadbar carried by said engaging and disengaging means adapted to supportthe thread away from said traversing means until after the winding ofthe package starts.

3. In a winding machine, a package holder,- means for actuating saidpackage holder, traversing means, means for engaging and disengagingsaid package holder from said package'holder actuating means, a threadbar pivotally' connected to said engaging and disengaging means, astationary fulcrum adapted to coact with said thread bar, said fulcrumedand pivoted thread bar being adapted to support the thread away fromsaid traversing means when said engaging and disengaging means is in aposition to become engaged.

4. In a winding machine, a package holder, means for actuating saidpackage holder, travers-v the traversing guide,

ing means, means for engaging and disengaging said package holder fromsaid package holder actuating means having an engaged positionintermediate its disengaged and its engaging positions,

a stationary fulcrum, a thread bar pivotally connected to said engagingand disengaging means adapted to rest proximate said fulcrum when saidengaging and disengaging means is in its engaged position and adapted tobe raised by said fulcrum when said engaging and disengaging means is inits engaging position so as to support the thread out of said traversingmeans.

5. In a winding machine, a package holder, means for actuating saidpackage holder, means for engaging and disengaging said package holderfrom said package holder actuating means, and a plurality of alternateelements for guiding the thread to the package as the package is beingwound including a traversing element and a manually actuatablenon-traversing element mounted on said engaging and disengaging means.

6. In a winding machine, a frame, a projection thereon, a packageholder, frictional means for actuating said package holder, threadtensioning means, traversing means operating between said threadtensioning means and said packge holder, a thread bar interposed betweensaid tensioning means and said traversing means, a stop motion cover,said thread bar being pivoted to said stop motion cover and beingfulcrumed upon said projection so as to support the thread away fromsaid traversing means at the time the package begins to wind.

JOHN 0. McKEAN.

